Inner ring of a construction drilling cup



FIG. 1 is a right view of an inner ring of a construction drilling cup showing my new design;

FIG. 2 is a left view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a perspective thereof; and,

FIG. 6 is a perspective thereof. 

CLAIM The ornamental design for an inner ring of a construction drilling cup, as shown. 